This drops roughly 1 in every 20 mobs in Kod'Taz. In a 6 and 8 hour AA trip there, I was the only looter and picked up a total of 18 of them. So not horrible, but not a realistic skillup path in Tailoring.

If this really is a common drop somewhere, and it's easy to find and farm, this is a really excellent way to level up in tailoring. This is a component in muramite needle. The tailoring level to make this is prefect, it bridges the gap where players would need to use Acrylia to make studded and boned armor. NOTE: DROPS in GoD zones, eg. off of the Abysmal sea.